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    <i class="icon fa fa-archive"></i>归档: 2020
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            <div class="date"><time datetime="2020-10-29T05:39:12.000Z" itemprop="datePublished">2020-10-29</time></div>
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网络编程概述计算机网络：
​    计算机网络是指将地理位置不同的具有独立功能的多台计算机及其外部设备，通过通信线路连接起来，在网络操作系统，网络管理软件及网络通信协议的管理和协调下，实现资源共享和信息传递的计算机系统。
网络编程的目的：
​    无线电台-&gt;传播交流信息，数据交换，通信
想要达到什么效果：
​    1.如何准确的定位网络上的一台主机 IP:PORT 定位到这个计算机的
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            标题一
标题二
标题三

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        <a href="/hexo/2020/10/27/hello-world/">Hello World</a>
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Welcome to Hexo! This is your very first post. Check documentation for more info. If you get any problems when using Hexo, you can find the answer in troubleshooting or you can ask me on GitHub.
Quic
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JavaBlog环境介绍
后端：Spring Boot、JPA
数据库：mysql
前端：semantic ui、thymeleaf模板引擎
开发环境：IDEA、maven、jdk1.8

项目说明
前端展示：

头部：导航栏（首页、分类、标签、归档、关于我）
中间内容：栅格（11+5），占11栅格部分的是文章列表，根据发布时间来展示，单页展示5个文章；占5栅格部分的我加了一个网易云的ifram
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Spring之整合MyBaits步骤：
1、导入相关jar包

junit
mybatis
mysql数据库
spring相关的
aop织入 aspectj
mybatis-spring 【new】

12345678910111213141516171819202122232425262728293031323334353637383940&lt;dependencies&gt;       
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Spring1、简介
Spring：春天—-&gt;给软件开发行业带来了春天！
2002，首次推出了Spring框架的雏形
2004年3月24日，最初版本interface21为基础，经过不断更新丰富其内涵，发布1.0正式版
Rod Johnson，Spring Framework的创始人：不要重复造轮子，站在巨人肩膀上去…
Spring理念：使现有的技术更容易使用，本身是一个大杂烩，整合了现有
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Java集合之Map写下这个也算是复习一下之前学习的知识吧。
Map集合Map集合存储的是 key-value 形式的键值对，需要保证键的唯一性。
接口中定义了一些方法
1、添加
12V put(K key, V value)void putAll(Map&lt;? extends K,? extends V&gt; m)

2、删除
12void clear()     //从这个映射中移除所
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单例设计模式什么是单例模式呢？
单例模式，是在我们软件开发过程中一种常用的软件设计模式，在它的核心结构中只包含一个被称为单例的特殊类。通过单例设计模式可以保证系统中，应用该模式的类只有一个实例，即一个类只有一个对象实例。
具体实现：
1、将构造方法私有化，使其不饿能在类的外部通过new关键字实例化该对象
2、在该类内部产生一个唯一的实例化对象，并且将其修饰为private static类型
3、
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CollectionInterface Collection 来自java.util包下，是非常实用的数据结构，字面意思是容器。
JDK中的描述：它是集合层次结构根接口。一个集合代表一组对象，被称为元素。一些集合允许重复的元素，而其他的则不允许。有些是有序和无序的人。JDK没有提供这个接口的任何直接的实现：它提供更具体的子接口像  Set和 List实现。此接口通常用于通过收集和操纵他们最大的共
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1、全局配置文件mybatis-config.xml：指导mybatis正确运行的一些全局设置
123456789101112131415161718192021222324&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; ?&gt;&lt;!DOCTYPE configuration        PUBLIC &quot;
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